The School of Net Marketing

M1.L6 · Marketing Foundations

Your funnel baseline

12 min

What you'll be able to doConstruct a one-page funnel baseline with real or estimated numbers and identify the single biggest leak, with a stated hypothesis.

Learn

One page that ends the fog

This is the lesson where things stop being abstract.

By the end of it you'll have a single page saying: how many people encounter your business each month, how many of them do something, how many buy, and how many come back. Four numbers and the rates between them.

That page is the most useful thing you will make in this module, because every module after this one is an attack on the weakest number on it. Module 4 attacks the rate from visit to enquiry. Module 6 attacks the top. Module 8 attacks the bottom. Without the baseline you can't choose where to aim, and — just as important — you can't prove afterwards that anything you did worked.

You will not have precise numbers. Nobody does. Estimates, clearly labelled as estimates, are the correct answer today.

Funnel arithmetic, and why small rates matter so much

Each stage is the previous stage multiplied by a conversion rate.

1,900 visitors × 2.2% = 41 trials 41 trials × 22% = 9 customers

The thing worth internalising: rate improvements compound, and they're usually cheaper than volume improvements. Doubling the visitor→trial rate from 2.2% to 4.4% doubles customers without a single extra visitor. Doubling visitors requires new content, new rankings, or new money — months of work, or a budget.

That's not an argument that rates are always the better target. It's an argument that you should look at both, and most people only ever look at volume.

Leak or drought?

Two different problems that feel identical from the inside.

A drought is a volume problem: not enough people find you. The rates are fine; the top of the funnel is empty.

A leak is a conversion problem: people arrive and don't act. The top is fine; something between stages is losing them.

They need opposite medicine. Pour more traffic into a leaky funnel and you waste most of it. Optimise conversion on a funnel nobody enters and you've spent a month improving the yield on nothing.

Most small businesses assume drought, because "we need more customers" naturally becomes "we need more people to see us". Sometimes that's right. Often it isn't, and the arithmetic tells you which.

Rough norms — with a serious warning

To judge whether a rate is bad, you need something to compare it to. Here are rough working ranges:

Transition Rough range
E-commerce: sessions → purchase 1.5–3%
B2B: website visitor → lead or trial 1–3%
Service business: enquiry → customer 20–50%
Trial → paid (self-serve software) 15–25%

The warning matters more than the table. These are not standards, they're orientation. They vary enormously by industry, price point, traffic source and country. A €5,000 service converts differently from a €50 one. Branded traffic converts several times better than cold traffic.

Use them to notice something far out of range — an e-commerce site converting at 0.2%, or a service business closing 3% of enquiries. Do not use them to conclude you're "average and therefore fine". Your own trend over time is a better benchmark than anyone else's average, which is why today's baseline matters.

Three businesses, three different diagnoses

The same method produces genuinely different answers. This is the part worth studying.

Storkflow — a drought, with permission to spend.

1,900 visitors → 41 trials (2.2%) → 9 customers (22%) Marketing spend €600/month → CAC = €600 ÷ 9 = €67 CLV from Lesson 1.5 ≈ €1,020

Lena assumed her problem was that nothing was working. The arithmetic says otherwise: 2.2% visitor→trial and 22% trial→paid are both inside normal ranges. Her rates are fine. Her top is small.

But look at the last two lines. Every customer costs €67 to acquire and returns about €1,020 of margin. That's a ratio of roughly 15:1, when the working convention is 3:1. Lena isn't failing at marketing. She is drastically underspending on it, and the economics give her permission to spend perhaps three times more.

That is a completely different conversation to have with her managing director than "our marketing isn't working" — and she could only have it because she did this arithmetic.

Herzog Physio — a leak hiding behind a drought.

~800 website visitors → 6 online enquiries (0.75%) → most become patients Meanwhile: ~45 new patients a month arrive, ~30 by GP referral, ~12 by word of mouth

Two things are true at once. 800 visitors is small — a drought. But 0.75% of visitors enquiring is also well below what a local service site should manage, and there's an obvious reason: the website has no online booking, only a contact form going to an inbox Tomas checks weekly.

There's a third, larger observation. Forty-five patients arrive monthly and only about six come through the website at all. His digital funnel is almost irrelevant to his current business. That's not a reason to ignore it — it's the reason his growth is capped at however many GPs remember him. But it does mean he should be honest that he's building a channel, not fixing one.

Ostara Ceramics — the rates are fine, the risk is elsewhere.

6,500 sessions → 91 orders (1.4%) → 19% ever order again

1.4% is at the low end of the e-commerce range but not alarming. The number that should worry Mateus is 19% returning customers, on a product people plausibly buy repeatedly — you buy one bowl, then a set, then a gift. And the whole 6,500 sessions depend on a single algorithm they don't control.

His funnel doesn't have one leak. It has a hole at the bottom and a single point of failure at the top.

Hypothesis discipline

Spotting the weak number is the easy half. The lesson's actual demand is this: every leak observation must end in a sentence of the form —

"I believe [this] is happening because [reason], and I could test it by [cheap test]."

Compare:

❌ "Our website needs improving." ✅ "I believe visitors don't enquire because there's no way to book without phoning during working hours. I could test it by adding an online booking link and watching enquiries for four weeks."

The second one can be wrong, which is what makes it useful. Modules 2 through 4 will either confirm it or kill it, and either outcome is progress.

Now build yours.


Do

Exercise 1.6.1 — Your funnel baseline

Build your funnel baseline. Use the metrics you chose in Lesson 1.4, estimate whatever you must (and flag it), then name your biggest leak and your best guess why.

Write these down — in your plan document, or on the worksheet at the end of this lesson.

What to write Guidance
Found us, per month Site sessions, footfall or profile reach — whichever fits your model. Flag estimates, here and on every number below
Acted, per month Leads, enquiries, trials or engaged visitors
Bought, per month Sales, bookings or signed clients. Every stage should be smaller than the one above it — if it isn't, something is miscounted
Came back Repeat rate %, churn %, or repeat customers per month, if you have any of them
Top sources — one to three Where does the top of your funnel come from today? Name each, with a share if you know it. "Word of mouth, no idea how much" is a valid answer
Your biggest leak One of: not enough people find us (drought) · they find us but don't enquire or add to cart · they enquire but don't buy · they buy once and never return
Your hypothesis 30–100 words, in the form: "I believe [leak] happens because [reason]. I could test this by [cheap test]"

Then divide each stage by the one above it to get your conversion rates — the worksheet lays this out — and compare them with the rough ranges above. Choosing the leak is yours to do; choosing is the skill being taught.

Where this goes: section 2 — Funnel & Economics — of your Marketing Plan, alongside your Lesson 1.5 economics card. Together they complete the section.


Check

Rubric

Mark your own work against these criteria, scored 1–10.

Criterion 8–10 5–7 1–4
Internal consistency Every stage is smaller than the one above it; rates are plausible or explicitly flagged as estimates One questionable figure, unflagged Stages contradict each other, or numbers appear invented
Correct leak identified The chosen leak genuinely is the weakest stage in your numbers Defensible choice, but a weaker stage exists Chosen leak contradicts your own arithmetic
Hypothesis quality Names a specific mechanism and a cheap, concrete test Names a cause but the test is vague "Improve the website", or no test at all
Source honesty Top sources listed with real shares or an honest "unknown" Sources listed, shares guessed silently Sources omitted or obviously flattering

Pass: 5+ on every criterion. Distinction: 8+ on all four.

Quiz

Four questions. Pick an answer to see whether you were right.

1. A funnel reads: 5,000 visits → 40 enquiries → 18 customers. Where is the biggest leak?

  • a) Visits → enquiries (0.8%)
  • b) Enquiries → customers (45%)
  • c) There is no leak
  • d) Impossible to say without revenue data

Why: 45% of enquiries closing is healthy for a service business. 0.8% of visitors enquiring is well below the normal range — five thousand people arrived and 4,960 left without a word.

2. Why must the baseline exist before Modules 2–9?

  • a) So Module 1 has a deliverable to its name
  • b) Later modules each attack a funnel stage — without a baseline you can't choose where to aim, or prove anything worked
  • c) Because analytics tools require six months of data
  • d) It doesn't; the module order is arbitrary

Why: the baseline is both the targeting system and the control group. Skip it and you'll spend six months busy without ever knowing whether it mattered.

3. Lena's Storkflow funnel converts at normal rates, and her CAC is €67 against a CLV of about €1,020. What does the arithmetic most support?

  • a) Marketing isn't working and should be paused
  • b) She should focus on improving her conversion rates
  • c) She's underspending — the economics support acquiring considerably more customers
  • d) The CLV must be wrong

Why: a 15:1 CLV-to-CAC ratio against a 3:1 convention means there's room to spend. The rates are already fine; the constraint is volume, and volume here is affordable.

4. Which is a properly formed leak hypothesis?

  • a) "Our conversion rate is too low"
  • b) "We should probably redesign the website"
  • c) "I believe visitors don't enquire because they can't book without phoning in working hours — I'd test it by adding an online booking link and watching four weeks of enquiries"
  • d) "Customers aren't loyal enough these days"

Why: it names a mechanism, and it can be proved wrong cheaply. The others can't be tested, which means they can't be learned from.


Advance

Module 1 complete. You now know what a customer is worth, what you can afford to spend, and where your funnel leaks. That's more than most people running marketing at small companies can say.

Next: Module 2 — Customer Research. Six lessons. You've been guessing who your customer is — reasonably, but guessing. Now you go and find out, and it will change at least one thing you currently believe.


Mark your own work

Good Not yet
Every number is there All stages filled, estimates flagged Blank stages, or a number you can't explain
Arithmetic holds Each stage is smaller than the one above A stage larger than its parent
The leak is the weakest stage Your choice matches your own numbers You chose the stage you'd already decided to fix
Testable hypothesis Names a mechanism and a cheap test "Improve the website"

Worksheet

THE SCHOOL OF NET MARKETING
Lesson 1.6 — Your funnel baseline

MONTHLY NUMBERS                          estimate?
  Found us (sessions / footfall / reach)  _______  ☐
  Acted   (enquiries / trials / leads)    _______  ☐
  Bought  (sales / bookings / clients)    _______  ☐
  Came back (repeat % or churn %)         _______  ☐

RATES — divide each stage by the one above, ×100
  Found → Acted    _______ %
  Acted → Bought   _______ %

  Rough ranges (orientation only, not standards):
    E-commerce sessions → purchase     1.5–3%
    B2B visitor → lead or trial        1–3%
    Service enquiry → customer         20–50%
    Trial → paid (self-serve software) 15–25%

TOP SOURCES — where does the top of the funnel come from?
  1. ____________________________  ____%
  2. ____________________________  ____%
  3. ____________________________  ____%

MY BIGGEST LEAK (tick one)
  ☐ Not enough people find us (drought)
  ☐ They find us but don't enquire / add to cart
  ☐ They enquire but don't buy
  ☐ They buy once and never return

MY HYPOTHESIS (30–100 words)
  I believe this happens because ______________________
  ____________________________________________________
  I could test it by _________________________________
  ____________________________________________________

SELF-CHECK
  ☐ Every stage filled, estimates flagged
  ☐ Each stage smaller than the one above it
  ☐ My chosen leak is genuinely my weakest rate
  ☐ My hypothesis names a mechanism and a cheap test

Next: Module 2 — Customer Research.
theschoolofnetmarketing.com/learn/evidence-beats-opinion